GN 1581 Stainless Steel Hex Head Screws, Hygienic Design, Low-Profile Head

Photo

Finish: MT - Matte finish (Ra < 0.8 µm)
Sealing ring material: E - EPDM

Product Family Stainless Steel

Standard parts made of rustproof stainless steel have been designed for use in the food sector, in the chemical industry, for aggressive ambient conditions or for outdoor use.

corrosion-resistant
precise fit
environmentally friendly

Show all Stainless Steel products

Product Family Hygienic Design

Standard Parts of the “Hygienic Design” product family are labeled with the HD icon. They combine high surface quality, freedom from dead spaces, non-scooped outer surfaces, and sealed bolting areas. A sealing concept based on FEM calculations ensures reliable contact pressure after installation.

suitable for use in hygienically sensitive areas
quick and easy cleaning
no dead spaces due to functional seals
certified according to EHEDG guidelines

Show all Hygienic Design products

FDA

The FOOD AND DRUG ADMINISTRATION is a federal agency of the United States Department of Health and Human Services, one of the United States’ executive departments. The FDA is responsible for many things including food safety. The FDA has a positive list of substances that are allowed to come into contact with foods and beverages.

Standard Sheet GN 1581 Print This Page Hygienic Design Information Elastomer Characteristics EHEDG Certification Stainless Steel Characteristics

Product description

Information

GN 1581 hex head screws with low-profile head are certified according to EHEDG guidelines and are ideal for use in hygienic areas. The sealed mounting surface enables fastening without dead spaces. The high quality finish as well as the large corner radii and closed surfaces prevent adherence of dirt and facilitate cleaning.

Specification

Body
Stainless steel AISI 316L

Matte finish (Ra < 0.8 µm)MT
Polished finish (Ra < 0.8 µm)PL

Sealing ring

H-NBRH
Temperature resistant from -13 °F to +302 °F (-25 °C to +150 °C)
EPDME
Temperature resistant from -40 °F to +248 °F (-40 °C to +120 °C)
Blue
Hardness 85±5 shore A
FDA compliant

RoHS

Accessory

Sealing rings GN 7600

Part Number MT	Part Number PL	d₁ Thread	l₁ Without shaft	With shaft	d₂	d₃	k	l₂	A/F

1581-M4-8-MT-H	1581-M4-8-PL-H	M 4	0.31	-	0.39	0.43	0.26	-	0.28
1581-M4-10-MT-H	1581-M4-10-PL-H	M 4	0.39	-	0.39	0.43	0.26	-	0.28
1581-M4-12-MT-H	1581-M4-12-PL-H	M 4	0.47	-	0.39	0.43	0.26	-	0.28
1581-M4-16-MT-H	1581-M4-16-PL-H	M 4	-	0.63	0.39	0.43	0.26	-	0.28
1581-M4-20-MT-H	1581-M4-20-PL-H	M 4	-	0.79	0.39	0.43	0.26	0.55	0.28
1581-M4-25-MT-H	1581-M4-25-PL-H	M 4	-	0.98	0.39	0.43	0.26	-	0.28
1581-M4-30-MT-H	1581-M4-30-PL-H	M 4	-	1.18	0.39	0.43	0.26	0.55	0.28
1581-M5-10-MT-H	1581-M5-10-PL-H	M 5	0.39	-	0.43	0.46	0.28	-	0.31
1581-M5-16-MT-H	1581-M5-16-PL-H	M 5	0.63	-	0.43	0.46	0.28	-	0.31
1581-M5-20-MT-H	1581-M5-20-PL-H	M 5	-	0.79	0.43	0.46	0.28	0.63	0.31
1581-M5-25-MT-H	1581-M5-25-PL-H	M 5	-	0.98	0.43	0.46	0.28	-	0.31
1581-M5-30-MT-H	1581-M5-30-PL-H	M 5	-	1.18	0.43	0.46	0.28	0.63	0.31
1581-M5-35-MT-H	1581-M5-35-PL-H	M 5	-	1.38	0.43	0.46	0.28	-	0.31
1581-M5-40-MT-H	1581-M5-40-PL-H	M 5	-	1.57	0.43	0.46	0.28	0.63	0.31
1581-M6-12-MT-H	1581-M6-12-PL-H	M 6	0.47	-	0.51	0.54	0.30	-	0.39
1581-M6-16-MT-H	1581-M6-16-PL-H	M 6	0.63	-	0.51	0.54	0.30	-	0.39
1581-M6-20-MT-H	1581-M6-20-PL-H	M 6	0.79	-	0.51	0.54	0.30	-	0.39
1581-M6-25-MT-H	1581-M6-25-PL-H	M 6	0.98	-	0.51	0.54	0.30	-	0.39
1581-M6-30-MT-H	1581-M6-30-PL-H	M 6	-	1.18	0.51	0.54	0.30	0.71	0.39
1581-M6-35-MT-H	1581-M6-35-PL-H	M 6	-	1.38	0.51	0.54	0.30	-	0.39
1581-M6-40-MT-H	1581-M6-40-PL-H	M 6	-	1.57	0.51	0.54	0.30	0.71	0.39
1581-M6-50-MT-H	1581-M6-50-PL-H	M 6	-	1.97	0.51	0.54	0.30	0.71	0.39
1581-M8-16-MT-H	1581-M8-16-PL-H	M 8	0.63	-	0.63	0.66	0.33	-	0.51
1581-M8-20-MT-H	1581-M8-20-PL-H	M 8	0.79	-	0.63	0.66	0.33	-	0.51
1581-M8-25-MT-H	1581-M8-25-PL-H	M 8	0.98	-	0.63	0.66	0.33	-	0.51
1581-M8-30-MT-H	1581-M8-30-PL-H	M 8	1.18	-	0.63	0.66	0.33	-	0.51
1581-M8-40-MT-H	1581-M8-40-PL-H	M 8	-	1.57	0.63	0.66	0.33	0.87	0.51
1581-M8-50-MT-H	1581-M8-50-PL-H	M 8	-	1.97	0.63	0.66	0.33	0.87	0.51
1581-M8-60-MT-H	1581-M8-60-PL-H	M 8	-	2.36	0.63	0.66	0.33	0.87	0.51
1581-M10-20-MT-H	1581-M10-20-PL-H	M 10	0.79	-	0.75	0.78	0.37	-	0.63
1581-M10-25-MT-H	1581-M10-25-PL-H	M 10	0.98	-	0.75	0.78	0.37	-	0.63
1581-M10-30-MT-H	1581-M10-30-PL-H	M 10	1.18	-	0.75	0.78	0.37	-	0.63
1581-M10-40-MT-H	1581-M10-40-PL-H	M 10	-	1.57	0.75	0.78	0.37	1.02	0.63
1581-M10-50-MT-H	1581-M10-50-PL-H	M 10	-	1.97	0.75	0.78	0.37	1.02	0.63
1581-M10-60-MT-H	1581-M10-60-PL-H	M 10	-	2.36	0.75	0.78	0.37	1.02	0.63
1581-M12-25-MT-H	1581-M12-25-PL-H	M 12	0.98	-	0.87	0.90	0.43	-	0.71
1581-M12-30-MT-H	1581-M12-30-PL-H	M 12	1.18	-	0.87	0.90	0.43	-	0.71
1581-M12-40-MT-H	1581-M12-40-PL-H	M 12	-	1.57	0.87	0.90	0.43	1.18	0.71
1581-M12-50-MT-H	1581-M12-50-PL-H	M 12	-	1.97	0.87	0.90	0.43	1.18	0.71
1581-M12-60-MT-H	1581-M12-60-PL-H	M 12	-	2.36	0.87	0.90	0.43	1.18	0.71
1581-M16-30-MT-H	1581-M16-30-PL-H	M 16	1.18	-	1.10	1.13	0.51	-	0.87
1581-M16-40-MT-H	1581-M16-40-PL-H	M 16	1.57	-	1.10	1.13	0.51	-	0.87
1581-M16-50-MT-H	1581-M16-50-PL-H	M 16	-	1.97	1.10	1.13	0.51	1.50	0.87
1581-M16-60-MT-H	1581-M16-60-PL-H	M 16	-	2.36	1.10	1.13	0.51	1.50	0.87
1581-M16-70-MT-H	1581-M16-70-PL-H	M 16	-	2.76	1.10	1.13	0.51	1.50	0.87
1581-M20-40-MT-H	1581-M20-40-PL-H	M 20	1.57	-	1.34	1.37	0.59	-	1.06
1581-M20-60-MT-H	1581-M20-60-PL-H	M 20	-	2.36	1.34	1.37	0.59	1.81	1.06

Part Number MT	Part Number PL	d₁ Thread	l₁ Without shaft	With shaft	d₂	d₃	k	l₂	A/F

1581-M4-8-MT-E	1581-M4-8-PL-E	M 4	0.31	-	0.39	0.43	0.26	-	0.28
1581-M4-10-MT-E	1581-M4-10-PL-E	M 4	0.39	-	0.39	0.43	0.26	-	0.28
1581-M4-12-MT-E	1581-M4-12-PL-E	M 4	0.47	-	0.39	0.43	0.26	-	0.28
1581-M4-16-MT-E	1581-M4-16-PL-E	M 4	-	0.63	0.39	0.43	0.26	-	0.28
1581-M4-20-MT-E	1581-M4-20-PL-E	M 4	-	0.79	0.39	0.43	0.26	0.55	0.28
1581-M4-25-MT-E	1581-M4-25-PL-E	M 4	-	0.98	0.39	0.43	0.26	-	0.28
1581-M4-30-MT-E	1581-M4-30-PL-E	M 4	-	1.18	0.39	0.43	0.26	0.55	0.28
1581-M5-10-MT-E	1581-M5-10-PL-E	M 5	0.39	-	0.43	0.46	0.28	-	0.31
1581-M5-16-MT-E	1581-M5-16-PL-E	M 5	0.63	-	0.43	0.46	0.28	-	0.31
1581-M5-20-MT-E	1581-M5-20-PL-E	M 5	-	0.79	0.43	0.46	0.28	0.63	0.31
1581-M5-25-MT-E	1581-M5-25-PL-E	M 5	-	0.98	0.43	0.46	0.28	-	0.31
1581-M5-30-MT-E	1581-M5-30-PL-E	M 5	-	1.18	0.43	0.46	0.28	0.63	0.31
1581-M5-35-MT-E	1581-M5-35-PL-E	M 5	-	1.38	0.43	0.46	0.28	-	0.31
1581-M5-40-MT-E	1581-M5-40-PL-E	M 5	-	1.57	0.43	0.46	0.28	0.63	0.31
1581-M6-12-MT-E	1581-M6-12-PL-E	M 6	0.47	-	0.51	0.54	0.30	-	0.39
1581-M6-16-MT-E	1581-M6-16-PL-E	M 6	0.63	-	0.51	0.54	0.30	-	0.39
1581-M6-20-MT-E	1581-M6-20-PL-E	M 6	0.79	-	0.51	0.54	0.30	-	0.39
1581-M6-25-MT-E	1581-M6-25-PL-E	M 6	0.98	-	0.51	0.54	0.30	-	0.39
1581-M6-30-MT-E	1581-M6-30-PL-E	M 6	-	1.18	0.51	0.54	0.30	0.71	0.39
1581-M6-35-MT-E	1581-M6-35-PL-E	M 6	-	1.38	0.51	0.54	0.30	-	0.39
1581-M6-40-MT-E	1581-M6-40-PL-E	M 6	-	1.57	0.51	0.54	0.30	0.71	0.39
1581-M6-50-MT-E	1581-M6-50-PL-E	M 6	-	1.97	0.51	0.54	0.30	0.71	0.39
1581-M8-16-MT-E	1581-M8-16-PL-E	M 8	0.63	-	0.63	0.66	0.33	-	0.51
1581-M8-20-MT-E	1581-M8-20-PL-E	M 8	0.79	-	0.63	0.66	0.33	-	0.51
1581-M8-25-MT-E	1581-M8-25-PL-E	M 8	0.98	-	0.63	0.66	0.33	-	0.51
1581-M8-30-MT-E	1581-M8-30-PL-E	M 8	1.18	-	0.63	0.66	0.33	-	0.51
1581-M8-40-MT-E	1581-M8-40-PL-E	M 8	-	1.57	0.63	0.66	0.33	0.87	0.51
1581-M8-50-MT-E	1581-M8-50-PL-E	M 8	-	1.97	0.63	0.66	0.33	0.87	0.51
1581-M8-60-MT-E	1581-M8-60-PL-E	M 8	-	2.36	0.63	0.66	0.33	0.87	0.51
1581-M10-20-MT-E	1581-M10-20-PL-E	M 10	0.79	-	0.75	0.78	0.37	-	0.63
1581-M10-25-MT-E	1581-M10-25-PL-E	M 10	0.98	-	0.75	0.78	0.37	-	0.63
1581-M10-30-MT-E	1581-M10-30-PL-E	M 10	1.18	-	0.75	0.78	0.37	-	0.63
1581-M10-40-MT-E	1581-M10-40-PL-E	M 10	-	1.57	0.75	0.78	0.37	1.02	0.63
1581-M10-50-MT-E	1581-M10-50-PL-E	M 10	-	1.97	0.75	0.78	0.37	1.02	0.63
1581-M10-60-MT-E	1581-M10-60-PL-E	M 10	-	2.36	0.75	0.78	0.37	1.02	0.63
1581-M12-25-MT-E	1581-M12-25-PL-E	M 12	0.98	-	0.87	0.90	0.43	-	0.71
1581-M12-30-MT-E	1581-M12-30-PL-E	M 12	1.18	-	0.87	0.90	0.43	-	0.71
1581-M12-40-MT-E	1581-M12-40-PL-E	M 12	-	1.57	0.87	0.90	0.43	1.18	0.71
1581-M12-50-MT-E	1581-M12-50-PL-E	M 12	-	1.97	0.87	0.90	0.43	1.18	0.71
1581-M12-60-MT-E	1581-M12-60-PL-E	M 12	-	2.36	0.87	0.90	0.43	1.18	0.71
1581-M16-30-MT-E	1581-M16-30-PL-E	M 16	1.18	-	1.10	1.13	0.51	-	0.87
1581-M16-40-MT-E	1581-M16-40-PL-E	M 16	1.57	-	1.10	1.13	0.51	-	0.87
1581-M16-50-MT-E	1581-M16-50-PL-E	M 16	-	1.97	1.10	1.13	0.51	1.50	0.87
1581-M16-60-MT-E	1581-M16-60-PL-E	M 16	-	2.36	1.10	1.13	0.51	1.50	0.87
1581-M16-70-MT-E	1581-M16-70-PL-E	M 16	-	2.76	1.10	1.13	0.51	1.50	0.87
1581-M20-40-MT-E	1581-M20-40-PL-E	M 20	1.57	-	1.34	1.37	0.59	-	1.06
1581-M20-60-MT-E	1581-M20-60-PL-E	M 20	-	2.36	1.34	1.37	0.59	1.81	1.06

d₁ Thread	l₁ Without shaft				With shaft					d₂	d₃	k	l₂	A/F

M 4	0.31	0.39	0.47	-	0.63	0.79	0.98	1.18	-	0.39	0.43	0.26	0.55	0.28
M 5	0.39	0.63	-	-	0.79	0.98	1.18	1.38	1.57	0.43	0.46	0.28	0.63	0.31
M 6	0.47	0.63	0.79	0.98	1.18	1.38	1.57	1.97	-	0.51	0.54	0.30	0.71	0.39
M 8	0.63	0.79	0.98	1.18	1.57	1.97	2.36	-	-	0.63	0.66	0.33	0.87	0.51
M 10	0.79	0.98	1.18	-	1.57	1.97	2.36	-	-	0.75	0.78	0.37	1.02	0.63
M 12	0.98	1.18	-	-	1.57	1.97	2.36	-	-	0.87	0.90	0.43	1.18	0.71
M 16	1.18	1.57	-	-	1.97	2.36	2.76	-	-	1.10	1.13	0.51	1.50	0.87
M 20	1.57	-	-	-	2.36	-	-	-	-	1.34	1.37	0.59	1.81	1.06

Min	Max	Price
1	24	$11.60
25	49	$10.63
50	99	$9.67
≥ 100		$8.70

GN 1581 Hex Head Screws Stainless Steel, Hygienic Design, Low-Profile Head

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Product Family Stainless Steel

Product Family Hygienic Design

FDA

Product description

Information

Specification

Accessory

Technical drawing

Part Options / Table

Sealing ring material: H - H-NBR

Sealing ring material: E - EPDM

Metric

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